Datenblatt-Suchmaschine für elektronische Bauteile |
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BU4240 Datenblatt(PDF) 6 Page - Rohm |
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BU4240 Datenblatt(HTML) 6 Page - Rohm |
6 / 12 page Technical Note 6/11 BU42□□G series, BU42□□F series, BU42□□FVE series, BU43□□G series, BU43□□F series, BU43□□FVE series www.rohm.com 2009.11 - Rev.C © 2009 ROHM Co., Ltd. All rights reserved. ● Circuit Applications 1) Examples of a common power supply detection reset circuit Application examples of BU42□□G/F/FVE series (Open Drain output type) and BU43□□G/F/FVE series (CMOS output type) are shown below. CASE1:The power supply of the microcontroller (Vdd2) differs from the power supply of the reset detection (Vdd1). Use the Open Drain Output Type (BU42□□G/FVE) attached a load resistance (RL) between the output and Vdd2. (As shown Fig.18) CASE2:The power supply of the microcontroller (Vdd1) is same as the power supply of the reset detection (Vdd1). Use CMOS output type (BU43□□G/FVE) or Open Drain Output Type (BU42□□G/FVE) attached a load resistance (RL) between the output and Vdd1. (As shown Fig.19) When a capacitance CL for noise filtering is connected to the Vout pin (the reset signal input terminal of the microcontroller), please take into account the waveform of the rise and fall of the output voltage (Vout). VDD1 BU43□□□ CIN GND CT Microcontroller RST CL (Capacitor for noise filtering) Fig.19 CMOS Output type VDD1 BU42□□□ VDD2 GND Microcontroller RST CL (Capacitor for noise filtering) CT RL CIN Fig.18 Open collector Output type |
Ähnliche Teilenummer - BU4240 |
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Ähnliche Beschreibung - BU4240 |
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